If you want to save money and the crack doesn't bother you, you can do the following to stop the cracking extension:1 r1 D( V1 c8 ?/ K. p
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(1) Buy a set-tube Epoxy (come with twin-tube to mix) at auto parts store or homedepot& i4 x3 `* i# f) o7 ]& e6 V
3 D, t! A. O# _# D1 \(2) To buy a round or square think-glass-disk with diameter or side length of 1 inch. If you can't find it, you can go 99 cents stores or dollartree to buy a large-clear-cloth-button at similar size. $ a( c# y1 b. ` . O8 k2 P' e' T( T5 K9 A3 d(3) Prepare Epoxy well, spread the paste to one side of the glass or button, attach it to the crack-upper-end from inside of windshield. Wait for 24 hrs. It'll be as solid as a rock and permanently stop the crack extension.